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www.reference.com/history/liquid-thermometer-work-18dab3d2a4a9b101

A liquid thermometer works by using the thermal expansion of a liquid within a capillary tube to measure temperature. The precision of this method varies by the liquid used, but all use the fact that when most liquids are heated, they expand. Common types of liquid thermometers use mercury, toluene

www.reference.com/article/liquid-glass-thermometer-work-96cce77996840d9d

The liquid in a glass thermometer, either colored alcohol or mercury, expands as it heats and condenses as it cools. In a thermometer, the liquid cannot expand outward and the only place it can go is up or down. Temperature on a glass thermometer can be measured in Fahrenheit, Celsius or Kelvin.

www.reference.com/science/red-liquid-thermometer-9aeff39eaa748115

The red liquid inside of a thermometer is alcohol. When the temperature changes, the alcohol expands, providing a reading based on the thermometer's scale. Red dye is used to color the clear alcohol so that someone is able to easily read the thermometer.

www.reference.com/science/digital-thermometer-work-298f7c171ba5ca70

Digital thermometers work on the principle that changes in temperature cause the resistance of a sensor to change allowing a computer to convert the difference to a digital read-out. The sensor is a thermoresistor, commonly called a thermistor, according to HowStuffWorks.com.

www.reference.com/article/love-test-thermometer-work-703bced5cbb1e86b

A love thermometer refers to a toy known as a hand boiler, which uses a combination of temperature and pressure in an enclosed glass tube to appear as if the liquid boils just by placing hands on one of the ends of the device. Hand boilers marketed as love thermometers are novelty toys, and they can

www.reference.com/article/thermometer-measure-f651c753ded19cdc

A thermometer measures the temperature of things. "Thermo" means heat, and "meter" means to measure. A thermometer is capable of measuring the temperature of a wide range of objects and the temperatures of individuals. These measurements include body temperature, oven temperature and outside tempera

www.reference.com/science/six-s-thermometer-work-ab4e675b80e394f3

A Six's thermometer functions by using alcohol to expand or contract the mercury inside to display both the highest and lowest temperatures of a given time period. There are bulbs at the top of each arm of the tube, one above each indicator. The bulb above the minimum indicator tube typically contai

www.reference.com/article/read-thermometer-93a2feb050e3a462

To read a thermometer, keep the thermometer in a vertical position so the liquid in the tube is upright. Keep eyes level with the top of the liquid in the tube. Avoid over-handling the thermometer as heat from another object may affect the reading.

www.reference.com/article/love-thermometer-b37101ffac2bed35

A love thermometer can refer to a number of very different products, including novelty love-themed hand boilers and simple programs that claim to give an objective arbitrary value to relationship success rates. The latter is also sometimes called a love calculator and is typically an application or

www.reference.com/article/liquid-inside-galileo-thermometer-e3602d1f7ca76d57

The base of a Galileo thermometer is filled with regular water. The colored orbs inside of the thermometer are glass bubbles filled with colored water.